N-氰基氯乙酰胺与共轭的巯基(硒代)腈反应,生成区域选择性S(Se)烷基化产物,该产物随后可参与Thorpe反应。所得的烯氨基氰在酸或碱催化下形成嘧啶环,形成稠合的二氨基嘧啶。根据该通用方案,功能性取代的噻吩并[3,2- d ]嘧啶,噻唑并[4,5- d ]嘧啶,嘧啶并[4“,5”:4',5']噻吩并[3',2': 4,5] thieno [3,2- d ]嘧啶,吡啶基[3',2'4,5] thieno(硒代苯酚)[3,2- d ]嘧啶,它们的氢化类似物和嘧啶-[4',5 ′:4,5]噻吩并[2,3- d ]嘧啶。
The emergence of multidrug-resistant pathogens necessitates the search for new antibiotics acting on previously unexplored targets. Nicotinate mononucleotide adenylyltransferase of the NadD family, an essential enzyme of NAD biosynthesis in most bacteria, was selected as a target for structure-based inhibitor development. To this end, the inventors have identified small molecule compounds that inhibit bacterial target enzymes by interacting with a novel inhibitory binding site on the enzyme while having no effect on functionally equivalent human enzymes.